Part Details for LT1129CST-3.3 by Linear Technology
Results Overview of LT1129CST-3.3 by Linear Technology
- Distributor Offerings: (5 listings)
- Number of FFF Equivalents: (7 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LT1129CST-3.3 Information
LT1129CST-3.3 by Linear Technology is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for LT1129CST-3.3
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 18 |
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RFQ | ||
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Quest Components | IC,VOLT REGULATOR,FIXED,+3.3V,BIPOLAR,SOT-223,3PIN,PLASTIC | 224 |
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$4.9500 / $9.0000 | Buy Now |
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Quest Components | IC,VOLT REGULATOR,FIXED,+3.3V,BIPOLAR,SOT-223,3PIN,PLASTIC | 45 |
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$21.5325 / $23.9250 | Buy Now |
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Quest Components | IC,VOLT REGULATOR,FIXED,+3.3V,BIPOLAR,SOT-223,3PIN,PLASTIC | 12 |
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$2.4750 / $4.9500 | Buy Now |
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Quest Components | IC,VOLT REGULATOR,FIXED,+3.3V,BIPOLAR,SOT-223,3PIN,PLASTIC | 11 |
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$2.5351 / $3.4569 | Buy Now |
Part Details for LT1129CST-3.3
LT1129CST-3.3 CAD Models
LT1129CST-3.3 Part Data Attributes
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LT1129CST-3.3
Linear Technology
Buy Now
Datasheet
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Compare Parts:
LT1129CST-3.3
Linear Technology
LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: 0°C to 70°C
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| Rohs Code | No | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | LINEAR TECHNOLOGY CORP | |
| Part Package Code | SOT | |
| Package Description | PLASTIC, SOT-223, 3 PIN | |
| Pin Count | 3 | |
| Manufacturer Package Code | ST | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Adjustability | FIXED | |
| Dropout Voltage1-Max | 0.7 V | |
| Dropout Voltage1-Nom | 0.45 V | |
| Input Voltage Absolute-Max | 30 V | |
| Input Voltage-Max | 20 V | |
| Input Voltage-Min | 3.8 V | |
| JESD-30 Code | R-PSSO-G3 | |
| JESD-609 Code | e0 | |
| Length | 6.505 mm | |
| Line Regulation-Max | 0.01% | |
| Load Regulation-Max | 0.03% | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | ||
| Output Current1-Max | 0.7 A | |
| Output Voltage1-Max | 3.4 V | |
| Output Voltage1-Min | 3.2 V | |
| Output Voltage1-Nom | 3.3 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOT-223 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 235 | |
| Qualification Status | Not Qualified | |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | |
| Seated Height-Max | 1.8 mm | |
| Surface Mount | YES | |
| Technology | BIPOLAR | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 2.3 mm | |
| Terminal Position | SINGLE | |
| Time@Peak Reflow Temperature-Max (s) | 20 | |
| Voltage Tolerance-Max | 3.03% | |
| Width | 3.505 mm |
Alternate Parts for LT1129CST-3.3
This table gives cross-reference parts and alternative options found for LT1129CST-3.3. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LT1129CST-3.3, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LT1129CST-3.3#PBF | Analog Devices Inc | $4.2089 | Micropower Low Dropout Regulators with Shutdown | LT1129CST-3.3 vs LT1129CST-3.3#PBF |
| LT1129IST-3.3#PBF | Analog Devices Inc | $7.0367 | Micropower Low Dropout Regulators with Shutdown | LT1129CST-3.3 vs LT1129IST-3.3#PBF |
| LT1129IST-3.3#TR | Analog Devices Inc | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 | LT1129CST-3.3 vs LT1129IST-3.3#TR |
| LT1129CST-3.3 | Analog Devices Inc | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO3 | LT1129CST-3.3 vs LT1129CST-3.3 |
| LT1129CST-3.3#PBF | Linear Technology | Check for Price | LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SOT; Pins: 3; Temperature Range: 0°C to 70°C | LT1129CST-3.3 vs LT1129CST-3.3#PBF |
| LT1129CST-3.3#TRPBF | Analog Devices Inc | Check for Price | Micropower Low Dropout Regulators with Shutdown | LT1129CST-3.3 vs LT1129CST-3.3#TRPBF |
| LT1129IST-3.3#TRPBF | Analog Devices Inc | Check for Price | Micropower Low Dropout Regulators with Shutdown | LT1129CST-3.3 vs LT1129IST-3.3#TRPBF |
LT1129CST-3.3 Frequently Asked Questions (FAQ)
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The maximum input voltage that can be applied to the LT1129CST-3.3 is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
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To ensure the output voltage is stable and accurate, make sure to use a stable input voltage, decouple the input and output with capacitors, and use a low-ESR output capacitor. Also, keep the PCB layout clean and avoid noise coupling.
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The LT1129CST-3.3 can maintain regulation down to a minimum load current of 1mA, but it's recommended to have a minimum load current of 10mA for optimal performance.
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The LT1129CST-3.3 is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to prevent overheating and ensure reliability.
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The power dissipation of the LT1129CST-3.3 can be calculated using the formula: Pd = (Vin - Vout) x Iout + (Vin x Iq), where Vin is the input voltage, Vout is the output voltage, Iout is the output current, and Iq is the quiescent current.